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No commits in common. "93c256d989dc084357ddec77af763de50c8517fd" and "872f7e629d7eac3039d1238facca926449864765" have entirely different histories.

5 changed files with 6 additions and 113 deletions

2
.gitignore vendored
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@ -1,3 +1,3 @@
.idea
inputs
inputs_test
test_inputs

18
main.go
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@ -3,23 +3,9 @@ package main
import (
"advent-20/solutions"
"fmt"
"time"
)
func main() {
runAndBenchmark("01", "1", false, solutions.Day01Part01)
runAndBenchmark("01", "2", false, solutions.Day01Part02)
runAndBenchmark("02", "1", false, solutions.Day01Part01)
runAndBenchmark("02", "2", false, solutions.Day01Part02)
}
type execute func(bool) int
func runAndBenchmark(day, part string, isTest bool, fn execute) {
startMs := time.Now().UnixMicro()
computation := fn(isTest)
endMs := time.Now().UnixMicro()
duration := endMs - startMs
fmt.Printf("Day %s part %s:\t%10d\t%5d micros.\n", day, part, computation, duration)
fmt.Println("Day 01 part 1:\t", solutions.Day01Part01(false))
fmt.Println("Day 01 part 2:\t", solutions.Day01Part02(false))
}

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@ -45,7 +45,7 @@ func Day01Part02(isTest bool) int {
for j := i + 1; j < arrLen; j += 1 {
for k := j + 1; k < arrLen; k += 1 {
if values[i]+values[j]+values[k] == 2020 {
return values[i] * values[j] * values[k]
return (values[i] * values[j] * values[k])
}
}
}

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@ -1,93 +0,0 @@
package solutions
import (
"strconv"
"strings"
)
func passwordPolicy1(input string) bool {
dashPosition := strings.Index(input, "-")
spacePosition := strings.Index(input, " ")
colonPosition := strings.Index(input, ":")
amountMin, err := strconv.Atoi(input[:dashPosition])
if err != nil {
panic("Error converting to int")
}
amountMax, err := strconv.Atoi(input[dashPosition+1 : spacePosition])
if err != nil {
panic("Error converting to int")
}
letter := input[spacePosition+1 : colonPosition]
rest := input[colonPosition+2:]
charMap := make(map[string]int)
for _, char := range strings.Split(rest, "") {
if _, ok := charMap[char]; ok {
charMap[char] += 1
} else {
charMap[char] = 1
}
}
charAmount := charMap[letter]
if charAmount >= amountMin && charAmount <= amountMax {
return true
}
return false
}
func Day02Part01(isTest bool) int {
input := ReadInput("02", isTest)
values := strings.Split(input, "\n")
correctPasswords := 0
for _, i := range values {
if passwordPolicy1(i) {
correctPasswords += 1
}
}
return correctPasswords
}
func passwordPolicy2(input string) bool {
dashPosition := strings.Index(input, "-")
spacePosition := strings.Index(input, " ")
colonPosition := strings.Index(input, ":")
firstIdx, err := strconv.Atoi(input[:dashPosition])
if err != nil {
panic("Error converting to int")
}
firstIdx -= 1
secondIdx, err := strconv.Atoi(input[dashPosition+1 : spacePosition])
if err != nil {
panic("Error converting to int")
}
secondIdx -= 1
letter := input[spacePosition+1 : colonPosition]
rest := input[colonPosition+2:]
firstIdxIsTrue := string(rest[firstIdx]) == letter
secondIdxIsTrue := string(rest[secondIdx]) == letter
return (firstIdxIsTrue && !secondIdxIsTrue) || (!firstIdxIsTrue && secondIdxIsTrue)
}
func Day02Part02(isTest bool) int {
input := ReadInput("02", isTest)
values := strings.Split(input, "\n")
correctPasswords := 0
for _, i := range values {
if passwordPolicy2(i) {
correctPasswords += 1
}
}
return correctPasswords
}

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@ -10,10 +10,10 @@ const DIR = "/home/fernando/GolandProjects/advent-20/"
func ReadInput(day string, isTest bool) string {
testStr := ""
if isTest {
testStr = "_test"
testStr = "test_"
}
bytes, err := os.ReadFile(DIR + "inputs" + testStr + "/" + day + ".txt")
bytes, err := os.ReadFile(DIR + testStr + "inputs/" + day + ".txt")
if err != nil {
fmt.Println(err)
panic("Error reading file.")